Re: some piping guideline

>is this a good desing guideline? doesnt look ok with me.
Flexibility allows for thermal expansion without unduly loading machinery or vessels. That's also the purpose of expansion joints. Some systems have enough flexibility without adding loops, other require loops to avoid high thermal loads.

As always that's a matter of compromise. More flexibility means more susceptibility to vibration or other dynamic loading because of lower structural frequencies. Looped runs are more expensive to fabricate and may require lateral support.

Christopher Wright P.E.    |"They couldn't hit an elephant at
chrisw@skypoint.com        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)